.
Soft palate
Labial mucosa
Floor of mouth
Buccal mucosa
0.001-0.01N
0.01-0.10N
0.10-0.5N
1.2N
0.2-0.5 micron
2-3 micron
0.2-0.3 micron
4-7 micron
Bell stage
Cap satge
Bud stage
Advanced bell stage
Bud stage
Cap stage
Bell stage
Advanced bell stage
Enamel knot
Enamel chord
Enamel niche
Enamel mesh
Bud stage
Cap stage
Bell stage
Advanced bell stage
Type 1 and 3
Type 1 and 2
Type 1 and 4
Type 1 only
6
7
17
All
Osteopontin
Tuftelin
Dentin sialoprotein
Amelogenin
25 micron
50 micron
75 micron
100 micron
Expression of dead tracts
Widening of predentin
Increase in peritubular diameter
Increase in peritubular dentin
Apposition
Initiation
Histodifferentiation
Morphodifferentiation
Elastin fibres
Collagen
Osteoblast
Inflammatory cells
4½ years
6½ years
8½ years
12½ years
Anterior portion of disc
Articular disc
Posterior portion of disc
Central portion of disc
Initiation
Proliferation
Histodifferentiation
Morphodifferentiation
Hypoplasia of local origin
Hypoplasia of systemic origin
Hypoplasia of hereditary origin
None of the above
5%
19%
40%
68%
Tuftelin
Sheathlin
Enamelin
Amelogenin